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Toshiba Semiconductor and Storage TCR2EN33,LF
- Part No.:
- TCR2EN33,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2EN33,LF.pdf
- Description:
- IC REG LINEAR 3.3V 200MA 4SDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,888
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Product details
Overview
TCR2EN33,LF from Toshiba Electronic Devices & Storage Corporation is a 3.3 V fixed-output CMOS low dropout (LDO) regulator delivering up to 200 mA, featuring 130 mV typical dropout at 3.0–3.6 V output, ±1.0% output accuracy (≥1.8 V), and 35 µVrms output noise. It integrates on/off control, auto-discharge, overcurrent protection, and operates in the ultra-small SDFN4/SDFN4E package (0.8 mm × 0.8 mm × 0.38 mm), targeting power management in space-constrained portable electronics.
For engineers reviewing the TCR2EN33,LF datasheet, TCR2EN33,LF pinout, TCR2EN33,LF application, or TCR2EN33,LF equivalent, key selection criteria include dropout performance at 150 mA load, quiescent current under 35 µA (IOUT = 0 mA), fast load transient response (±55 mV), compatibility with 0.1 µF/1.0 µF ceramic capacitors, and thermal derating for FR4 board mounting.
Technical Context
The TCR2EN33,LF employs a CMOS-based pass transistor architecture enabling low dropout voltage and minimal quiescent current. Its internal control loop delivers fast load transient response (±55 mV step change from 1 mA to 150 mA) with only 1.0 µF output capacitance, and includes integrated overcurrent protection and an auto-discharge circuit activated when CONTROL is pulled low.
It supports three-state CONTROL input logic: HIGH (≥1.0 V) enables regulation, LOW (≤0.4 V) disables output and activates auto-discharge, OPEN leaves output disabled without discharge. Ripple rejection is 73 dB at 1 kHz, and output voltage stability is maintained across −40°C to +85°C ambient with 75 ppm/°C temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1.0% (guaranteed for 1.8 V ≤ VOUT); enables stable core/bias rail for 3.3 V logic and RF ICs. |
| Max Output Current | 200 mA continuous; sufficient for powering microcontrollers, sensors, and wireless transceivers in compact devices. |
| Dropout Voltage | 130 mV typ. at 3.3 V / 150 mA; allows operation from 3.43 V input, extending battery life in single-cell Li-ion or 2xAA systems. |
| Quiescent Current | 35 µA typ. at zero load; minimizes standby power loss in always-on IoT endpoints and wearables. |
| Output Noise | 35 µVrms (10 Hz–100 kHz); low enough for noise-sensitive analog circuits like ADC references or RF synthesizers. |
| Ripple Rejection | 73 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Load Transient Response | ±55 mV deviation (1 mA ↔ 150 mA step, 1.0 µF COUT); maintains system stability during burst-mode processor or radio activity. |
Pinout & Package
TCR2EN33,LF is housed in the ultra-compact SDFN4/SDFN4E plastic mold package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg weight), optimized for high-density PCB layouts in smartphones, wearables, and hearing aids.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.5–5.5 V input; requires 0.1 µF ceramic decoupling close to pin for stability. |
| VOUT | Regulated output terminal | Delivers fixed 3.3 V ±1.0%; connects to 1.0 µF ceramic output capacitor and load. |
| GND | Ground reference | Common return path for input, output, and control; center electrode must be connected to GND. |
| CONTROL | Enable/disable logic input | Active-HIGH enable (1.0–5.5 V); LOW (≤0.4 V) disables output and engages auto-discharge. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 130 mV typ. at 3.3 V/150 mA enables efficient operation from marginal input sources. |
| Auto-discharge function | Actively discharges VOUT when CONTROL is low, preventing residual voltage hold-up in power sequencing. |
| Ceramic capacitor compatibility | Stable with 0.1 µF input and 1.0 µF output ceramics-no ESR requirements beyond <10 Ω. |
| Low-noise regulation | 35 µVrms noise ensures clean power for precision analog and RF subsystems. |
| Fast transient recovery | ±55 mV perturbation with 1.0 µF COUT eliminates need for bulky bulk capacitance in dynamic loads. |
Applications
| Smartphone Power Rail | Wearable Sensor Node |
|---|---|
Use Scenario: Supplying 3.3 V to baseband processors and RF front-end ICs in LTE/5G handsets where board area is constrained and battery runtime is critical. IC Role / Device Role / Timing Role: Primary low-noise, low-quiescent LDO for digital core and RF bias rails. Use Value: 130 mV dropout extends usable battery voltage range; 35 µVrms noise prevents RF desensitization; SDFN4E footprint saves >60% area vs. SOT-23. | Use Scenario: Powering MEMS accelerometers, optical heart-rate sensors, and BLE SoCs in fitness trackers with multi-day battery life. IC Role / Device Role / Timing Role: Always-on LDO managing sleep/wake transitions via CONTROL pin. Use Value: 35 µA quiescent current minimizes standby drain; auto-discharge ensures rapid power-down; 0.8 mm × 0.8 mm size fits sub-10 mm² modules. |
| IoT Edge Node | Medical Diagnostic Patch |
Use Scenario: Regulating 3.3 V for LoRaWAN or NB-IoT modems operating intermittently from coin-cell or energy-harvested sources. IC Role / Device Role / Timing Role: Load-switched LDO enabling precise duty-cycled power delivery. Use Value: CONTROL pin logic enables µA-level off-state current (0.1 µA typ.); fast 55 mV transient response handles modem TX bursts without brownout. | Use Scenario: Providing stable 3.3 V to ECG amplifiers and ADCs in disposable wireless patient monitors requiring clinical-grade signal integrity. IC Role / Device Role / Timing Role: Precision low-noise LDO for analog signal chain biasing. Use Value: ±1.0% output accuracy and 75 ppm/°C TCVO ensure consistent gain calibration; 35 µVrms noise avoids baseline drift in µV-level bio-potential measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B332MR-G | Same 3.3 V output, 200 mA rating, SOT-25 package (2.9 mm × 2.8 mm); higher 250 mV dropout at 150 mA. | Larger footprint; less suitable for ultra-dense layouts but offers wider VIN range (up to 6.0 V). | Choose when board space permits larger package and input voltage exceeds 5.5 V. |
| Rohm BD33IC0WEFJ-M | 3.3 V, 200 mA, HTSOP-J8 package (4.0 mm × 4.0 mm); 170 mV dropout at 150 mA; no auto-discharge. | Requires external discharge circuitry; better thermal dissipation but 25× larger area than SDFN4E. | Prefer when thermal management dominates over size, and auto-discharge is handled externally. |
Compared with TCR2EN33,LF, the XC6210B332MR-G trades ultra-small size for higher input voltage tolerance, while the BD33IC0WEFJ-M sacrifices footprint and auto-discharge for improved thermal handling-making TCR2EN33,LF optimal for miniaturized, battery-sensitive designs requiring integrated power sequencing.
Availability
TCR2EN33,LF is available at Aetrix Electronics and suitable for smartphone power rails, wearable sensor nodes, IoT edge nodes, medical diagnostic patches, and other applications requiring stable component supply with tight size and efficiency constraints.
Supply support for TCR2EN33,LF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs and manufactures high-reliability semiconductor solutions for consumer, industrial, and automotive markets, with emphasis on power efficiency and miniaturization.
The TCR2EN series targets portable and battery-powered electronics, delivering ultra-low-noise, ultra-small LDO regulation with integrated control and protection features for next-generation compact devices.
FAQ
What is the guaranteed output voltage accuracy of TCR2EN33,LF across temperature and load?
The TCR2EN33,LF guarantees ±1.0% output voltage accuracy for 1.8 V ≤ VOUT, which applies to the 3.3 V variant. This specification holds over the full operating temperature range (−40°C to +85°C) and load current range (1 mA to 150 mA), as confirmed in the Electrical Characteristics table under "Output voltage accuracy" with test condition IOUT = 50 mA and Tj = 25°C. The TCR2EN33,LF also exhibits a temperature coefficient of 75 ppm/°C, ensuring minimal drift across ambient conditions.
Does TCR2EN33,LF require external components for stable operation, and what are the minimum values?
Yes, the TCR2EN33,LF requires two external ceramic capacitors: a 0.1 µF input capacitor (CIN) placed between VIN and GND, and a 1.0 µF output capacitor (COUT) between VOUT and GND. These values are validated in the datasheet's Electrical Characteristics section (test condition: CIN = 0.1 µF, COUT = 1.0 µF) and Application Note section. Toshiba specifies ESR < 10 Ω for reliable stability and recommends mounting COUT as close as possible to the IC pins to minimize trace inductance.
How does the CONTROL pin function on TCR2EN33,LF, and what are its valid logic thresholds?
The CONTROL pin on TCR2EN33,LF is an active-high enable input. It turns the regulator ON when voltage is ≥1.0 V (up to 5.5 V), and OFF when ≤0.4 V. In the OFF state, the auto-discharge function actively pulls VOUT to GND through an internal transistor. An open (floating) CONTROL pin leaves the device disabled without discharge. These thresholds are specified in the Electrical Characteristics table under "Control voltage (ON)" and "Control voltage (OFF)", with guaranteed min/max values across temperature and process variation.
What is the maximum allowable input voltage for TCR2EN33,LF, and what happens if it is exceeded?
The absolute maximum input voltage for TCR2EN33,LF is 6.0 V, as stated in the Absolute Maximum Ratings table. Operation above this level risks permanent damage to the internal CMOS pass element and control circuitry. The recommended operating input voltage range is 1.5 V to 5.5 V (per Electrical Characteristics), ensuring proper regulation, dropout margin, and thermal safety. Exceeding 5.5 V-even briefly-may trigger overvoltage stress not covered by protection circuits, leading to parametric shift or failure.
Can TCR2EN33,LF be used in automotive applications, and what are its qualified temperature limits?
No, the TCR2EN33,LF is not qualified for automotive applications. Its specified operating temperature range is −40°C to +85°C (Topr), and junction temperature limit is 150°C-but Toshiba explicitly excludes automotive use in its RESTRICTIONS ON PRODUCT USE notice, stating the device is "neither intended nor warranted" for equipment used in automobiles. For automotive-grade alternatives, designers must select parts qualified to AEC-Q100 with extended temperature ranges (e.g., −40°C to +125°C) and appropriate PPAP documentation.
TCR2EN33,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2EN
- Package/Case:
- 4-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.18V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- -
- PSRR:
- 73dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-SDFN (0.8x0.8)
TCR2EN33,LF FAQ
1.How can I place an order for TCR2EN33,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2EN33,LF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TCR2EN33,LF reliable?
The price and inventory of TCR2EN33,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2EN33,LF is usually 5 days.
3.What payment methods are accepted for TCR2EN33,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2EN33,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2EN33,LF?
TCR2EN33,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2EN33,LF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TCR2EN33,LF?
For technical support, including TCR2EN33,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2EN33,LF requirements.
6.How does Aetrix verify that TCR2EN33,LF is sourced from the original manufacturer or authorized distributors?
All TCR2EN33,LF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TCR2EN33,LF meets industry standards.
7.What is the process for return or replacement of TCR2EN33,LF?
All TCR2EN33,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR2EN33,LF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TCR2EN33,LF part is unused and in its original packaging.
Return procedure for TCR2EN33,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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